Sökning: "partial volume effects"

Visar resultat 1 - 5 av 13 uppsatser innehållade orden partial volume effects.

  1. 1. Feasibility of single time point dosimetry during 177Lu-PSMA-617 treatments of prostate cancer

    Master-uppsats, Lunds universitet/Sjukhusfysikerutbildningen

    Författare :Elias Nilsson; [2022]
    Nyckelord :Medicine and Health Sciences;

    Sammanfattning : Introduction: Standard dosimetry methods for radionuclide therapies re- quire imaging at multiple time points post injection. An alternative method has been presented in the literature that uses previously acquired pharma- cokinetic data to create so-called dose factors. LÄS MER

  3. 2. Assessing a Modeling Standard in Volcanic-Geothermal Systems: the Effects of the Lower System Boundary

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Shelly Mardhia Faizy; [2021]
    Nyckelord :Geothermal; Numerical Modelling; Laccolith; Permeability; Topography;

    Sammanfattning : Geothermal energy consumption is projected to increase along with other renewable energy in the future. Therefore, it is important to have a better understanding on the evolution of geothermal systems to optimize the exploitation of such resources. Generally, numerical models are used as a fundamental tool to study a potential geothermal field. LÄS MER

  4. 3. Quantification of I-131 Activity from Gamma Camera Images of Thyroid Cancer Patients

    Master-uppsats, Lunds universitet/Sjukhusfysikerutbildningen

    Författare :Frida Westerbergh; [2019]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : BACKGROUND: Radioiodine (131I) has been used in thyroid cancer treatments for many years, and has demonstrated good results with regards to disease management. Radioiodine therapy is however partially empirical, as not very much is known concerning radiation dosimetry. LÄS MER

  5. 4. Automatic Segmentation and Classification of Multiple Sclerosis Lesions Using Quantitative Magnetic Resonance Imaging

    Master-uppsats, Linköpings universitet/Institutionen för medicinsk teknik

    Författare :Johanna Alfredsson; [2019]
    Nyckelord :Lesion Segmentation; Multiple Sclerosis; MS; Synthetic MRI; MRI; Lesion Evolution; Lesion Progression; Lesion Analysis; Medical Imaging; qMRI; Quantitative MR; Automatic Segmentation;

    Sammanfattning : Multiple sclerosis is a neurological disease causing a degeneration of myelin around the axons in the central nervous system. This process leaves traces in the form of lesions, which can be distinguished in an MRI examination. It is important to detect these at an early stage to state diagnosis and initiate medication. LÄS MER

  7. 5. Precisionsbaserad analys av trafikprediktion med säsongsbaserad ARIMA-modellering.

    Kandidat-uppsats, Högskolan i Borås/Akademin för bibliotek, information, pedagogik och IT

    Författare :Johan Landström; Patric Linderoth; [2018]
    Nyckelord :SARIMA; traffic volume; ITS; data drive modeling; autocorrelation; prediction; precision; SARIMA; trafikvolym; ITS; datadriven modellering; autokorrelation; prediktion; precision;

    Sammanfattning : Intelligenta Transportsystem (ITS) utgör idag en central del i arbetet att försöka höja kvaliteten i transportnätverken, genom att exempelvis ge stöd i arbetet att leda trafik i realtid och att ge trafikanter större möjlighet att ta informerade beslut gällandes sin körning. Kortsiktig prediktion av trafikdata, däribland trafikvolym, spelar en central roll för de tjänster ITS-systemen levererar. LÄS MER